The neural message being delivered in a synaptic transmission is carried across the synaptic gap by ________ substances.
A) electrical
B) ionic
C) syntonic
D) chemical

Question

Quizplus · Accepted Answer

The correct term for the substances that carry the neural message across the synaptic gap is chemical. Electrical impulses do not cross the synaptic gap directly, but instead trigger the release of neurotransmitters (chemicals) from the presynaptic neuron. These neurotransmitters then bind to receptors on the postsynaptic neuron, delivering the neural message. Ionic substances can be involved in the transmission of the neural message within the neuron itself, but they do not cross the synaptic gap. Syntonic is not a term used in neuroscience.

The Neural Message Being Delivered in a Synaptic Transmission Is